Security Bulletin: Vulnerability in IBM SDK Java affects IBM Cloud Pak System (CVE-2020-27221)

Security Bulletin

Summary

Vulnerability in IBM SDK Java affects IBM Cloud Pak System. OS Image for Red Enterprise Linux shipped with Cloud Pak System addressed this vulnerability.

Vulnerability Details

CVEID: CVE-2020-27221
DESCRIPTION: Eclipse OpenJ9 is vulnerable to a stack-based buffer overflow when the virtual machine or JNI natives are converting from UTF-8 characters to platform encoding. By sending an overly long string, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/195353 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)	Version(s)
IBM Cloud Pak System	2.3

Remediation/Fixes

For unsupported version/release/platform IBM recommends upgrading to a fixed, supported version of the product.

This Security Bulletin applies to Cloud Pak System Software, IBM OS Image for Red Hat Linux Systems (RHEL 7.9) 3.1.3.0 updates to IBM® SDK Java™ Technology Edition, V8.0.6.25.

for IBM Cloud Pak System V2.3.0 through V2.3.3.3, upgrade to V2.3.3.3 Interim Fix 1 or later at Fix Central

Notice IBM Cloud Pak System v2.3.3.4 has upgraded Java to IBM® SDK Java™ Technology Edition V8.0.7.0.

Information on upgrading at : http://www.ibm.com/support/docview.wss?uid=ibm10887959

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Acknowledgement

Change History

29 Sep 2021: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Tips

Security Bulletin: Vulnerability in IBM SDK Java affects IBM Cloud Pak System (CVE-2020-27221)